Subtract 20/15 from 84/12
1st number: 7 0/12, 2nd number: 1 5/15
84/12 - 20/15 is 17/3.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 15 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 12 × 5 = 60,
84/12 = 84 × 5/12 × 5 = 420/60 - Likewise, for the 2nd fraction, since 15 × 4 = 60,
20/15 = 20 × 4/15 × 4 = 80/60 - Subtract the two like fractions:
420/60 - 80/60 = 420 - 80/60 = 340/60 - After reducing the fraction, the answer is 17/3
- In mixed form: 52/3
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